Hearing and Sound Source Identification With Protective Headwear

Sound source localization by hearing preservation patients with and without symmetrical low-frequency acoustic hearing.

The aim of this article was to study sound source localization by cochlear implant (CI) listeners with low-frequency (LF) acoustic hearing in both the operated ear and in the contralateral ear. Eight CI listeners had symmetrical LF acoustic hearing and 4 had asymmetrical LF acoustic hearing. The effects of two variables were assessed: (i) the symmetry of the LF thresholds in the two ears and (i...

Household Sound Identification for People with Hearing Disabilities

This article concerns the classification of household sounds for the development of an application to help people with hearing disabilities to resolve everyday situations which may present them with serious problems: telephone calls, the sound of the door bell, an alarm clock, the completion of a domestic appliance programme, etc. It presents the study carried out in order to obtain the best ac...

Of Sound and Hearing

Relationship between Sound Pressure Levels and the Risk of Hearing Loss using Personal Protective Equipment in Manufacturing Industries

Introduction: The sound pressure levels caused by work environment noise, along with the effects and ways of reducing it, are one of the most important issues in the manufacturing industry. Noise is the most common pollutant in the industrial environment, which can cause many disorders in various organs of the body, such as the auditory and vascular systems. This study aimed to investigate the ...

Cochlear outer-hair-cell efferents and complex-sound-induced hearing loss: protective and opposing effects.

Centrifugal crossed and uncrossed medial olivocochlear systems (CMOCS and UMOCS) terminate on cochlear outer hair cells (OHCs) and exercise effects through a nicotinic cholinergic receptor. Hence their cochlear effects have not been differentiated. Recent work on protection from loud-sound-induced temporary threshold shifts (TTSs) in hearing sensitivity suggest the two OHC efferent systems may ...